We have developed a mechanochemically responsive material capable of successively releasing small organic molecules from a crosslinked network upon repeated compressions. The use of a flex activated mechanophore that does not lead to main chain scission and an elastomeric polyurethane enabled consecutive compressions with incremental increases in the % mechanophore activation. Additionally, we examine the effect of multiple applications of compressive stress on both mechanophore activity and the mechanical behavior of the elastomeric matrix in which the mechanophore is embedded.

Successive mechanochemical activation and small molecule release in an elastomeric material

248th National Meeting (2014)

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